Textile roll



A ril 127 1926. 1,582,5Q8

I H. F. BUSCH TEXTILE ROLL Filed Jan. l2, 1925 INVENTOR Patented Apr. 27, 1926.

UNITED STATES PATENT orrica.

HERMAN F. BUSCH, F MILLVALE, PENNSYLVANIA, ASSIGNOR TO ARMSTRON CORK COMPANY, OF PITTSBURGH. PENNSYLVANIA, ACORPORATION- OF PENNSYLVANIA.

TEXTILE ROLL.

Application filed January 12, 1925. Serial No. 1,799.

To all whom it may concern:

Be it known that I, HERMAN F. Boson, a citizen of the United States, residing at Millvale, county of Allegheny, State of Pennsylvania, have invented a new. and use-- ful Improvement in Textile Rolls, of which the following is a full, clear, and exact description.

The present invention relates to textile rolls, and more especially to a textile roll having a resilient cork sleeve and a covering thereon of leather or similar material.

Textile rolls, and especially the drawing rolls for spinning frames, are commonly made by applying a sleeve of felt over a metal body, the felt being covered with leather. The felt has relatively little resiliency and it is found that if a piece of hard material, such as a sliver, a bit of hard twine or a small piece of wire, passes bet-ween the rolls it will permanently indent the surface and ruin the roll.

I have .found that a superior roll may be made by substituting a sleeve of resilient artificial cork composition in place-of the usual felt. This cork composition is made by com pressing a mixture of granulated cork and a suitable binder so that the composition consists of flattened cork granules held in a permanently resilient mass by the binder. This material is much more resilient than felt and' will spring back into shape in case a piece of hard material .passes under the roll. Moreover the -cots of this material may be finished to a more uniform size than the felt covering. The cork can be made up into cots and shipped to the mills, whereas in making the felt rolls the felt is Wound on by skilled labor. i

In the drawings Figure 1 is an elevation of a drawing roll for a spinning frame embodying my inven-- tion;

Figure 2 is a section through thecork sleeve and leather covering,

Figure 3 is a section along the line III- III of Figure 1, and

Figure 4 is a perspective view of one of the sleeves with the leather cover removed.

Referring to the illustrated embodiment of the invention, reference numeral 1 indicates the metal body of the usual type of drawing roll of a spinning frame. This metal body has on it two cots, the two cots being indicated by the reference numerals 2. These cots are of the usual shape and size. They also have the usual covering 3 of leather. Instead of the felt beneath the leather I employ a sleeve 4 of cork, preferably artificial cork.

In making up the roll the roll body beneath the sleeve is preferably turned down to a somewhat smaller size than that employed for the felt covering in order to allow a layer of cork somewhat thicker than the usual body of felt employed.

The cork sleeve is preferably made. up as described in my Patent No. 1,532,682, of April 7, 1925. However, instead of employing the cork as the working surface of the roll, as described in said patent, I cover the cork with a covering of a pliable sheet material such as leather or artificial leather.

In making up the cork sleeve 4 I compress granulated cork with a binder, as described in said patent, so that the granules are compressed in a direction parallel to the axis of the cot. In making up the artificial cork I take pains to form a firm yet resilient composition. As described in my said patent,

this is preferably made up by using granulated cork. The cork granules should pass through openings and over a thirty mesh to the inch screen. The granules are preferably sized to pass through a ten mesh to the inch screen and over a twenty-four mesh to the inch screen. A permanently elastic binder is employed, preferably a gylcerine gelatine binder. In making up the mixture I preferably mix 100 pounds of granulated cork with 10 pounds of gylcerine and 5 pounds of gelatine. About 20 ounces of commercial liquid formaldehyde or its equiva lent is added as a coagulant to the mixture. The. cork composition is thoroughly mixed and compressed in a mold, the pressure preferably being such as to reduce the mass of the mixture to approximately of its original volume. The mixture, while confined in. the mold, is heated to preferably about 250 F. to set the binder. After the mass is cooled it is removed from the mold and made into the sleeves. These sleeves may be made by tamping the mixture-into a mold to form a rod which is bored out and ground to finished size, or the mixture may be to form the sleeve. It is preferred to so finish the sleeves from the compressed ar;

of the roll body and will be resisted by the cement, as described in my patent referred to above. However, artificial cork may be employed in which the planes of compression of the granules are in other directions.

In making up the textile roll the cork sleeves 4 are carefully reamed to fit the roll body and are slipped over and cemented thereon. The outer surfaces of the sleeves are carefully ground to the proper size and to uniform diameter. Then the ,leather covers 3 are applied in the same way as they are applied in making the usual felt sleeves, namely, the leather sleeve is formed of the right size and is slipped over the cork sleeve and the edges of the leather are burnished down by a suitable tool While the roll is rotated.

The cork sleeve forms a firm yet resilient cushion or backing for the leather. It can be accurately ground to a fine uniform surface. The cork has sufiicient resiliency so that if small pieces of hard material pass under the roll the cot will not be permanently dented and its usefulness destroyed, as is the case with the felt cushioned cot. The cork sleeve will last for a long time beneath the leather and if the leather is worn out it is not necessary to replace the cork sleeve, but the worn out leather may be removed and anolther leather sleeve covering put over the cor While the present invention has been specifically illustrated and described as embodied in the usual drawing roll for a spinning frame, it is to be understood that the invention is not so limited but may be embodied in other types of textile rolls. My invention is not limited to its illustrated embodiment, but may be otherwise embodied within the scope of the following claims.

I claim:

1. A textile roll having a sleeve formed from compressed artificial cork, the direction of compression of the cork being substantially parallel to the axis of the roll, and a leather covering thereon, substantially as described.

2. A textile roll having a sleeve formed of compressed artificial cork consisting of resilient compressed flattened cork granules and an elastic binder, and a leather covering thereon, substantially as described.

.A textile roll having a sleeve formed from compressed artificial cork, the planes of compression of the cork granules being at an angle to the working surface of the roll, and a leather covering thereon, substantially as described.

4. A textile roll having a sleeve formed from compressed artificial cork, the planes of compression of the cork granules being at an angle to the working surface of the roll, and a covering of a pliable sheet material thereon, substantially as described.

5. A textile roll having a sleeve formed from compressed artificial cork consisting of resilient compressed flattened cork granules and an elastic binder, and a covering of a pliable sheet material thereon,. .substantially as described.

In testimony whereof I have hereunto set In hand.

y HERMAN F. BUSCH. 

